excel实现拖放导入datagridview

Question

excel实现拖放导入datagridview。通过打开对话框导入excel文件到datagridview，这个我实现了。
请教，我想直接把excel文件通过拖放方式导入datagridview如何实现？

Answer 1

http://www.cnblogs.com/lhxhappy/archive/2008/11/26/1341873.html
参考：WINFORM实现的用于拖放操作和文件复制小功能
private void ExBtnExecute_ClickEvent(object sender, EventArgs e)
         {
             ExBtnExecute.CtlEnabled = false;
              for (int i = 0; i < lstFilePath.Items.Count; i++)
             {
                 Application.DoEvents();
                 lstFilePath.SetSelected(i, true);
                  //如果当前字符串是一个目录则.
                 if (Directory.Exists(lstFilePath.Items[i].ToString()))
                 {
                     CopyDirectory(lstFilePath.Items[i].ToString(), txtSelDrive.Text +"\\"+ Path.GetFileName(lstFilePath.Items[i].ToString()));
                      lstFilePath.Items[i] = "复制完成";
                 }
                 else
                 {
                     if (!File.Exists(lstFilePath.Items[i].ToString())) continue; //如果文件不存在继续下一个循环
                     File.Copy(lstFilePath.Items[i].ToString(), txtSelDrive.Text + "\\" + Path.GetFileName(lstFilePath.Items[i].ToString())); 
                           lstFilePath.Items[i] = "复制完成";
                 }
             }
             lstFilePath.Items.Clear();
             ExBtnExecute.CtlEnabled = true;
         }
          private void txtSelDrive_DoubleClick(object sender, EventArgs e)
         {
             FolderSelDialog.ShowDialog(this);
             txtSelDrive.Text = FolderSelDialog.SelectedPath;
         }
         /**//// <summary>
         /// 复制一个目录下的所有文件或目录到一个新的目录下
         /// </summary>
         /// <param name="sourcePath">源目录路径</param>
         /// <param name="destPath">目标目录路径</param>
         private void CopyDirectory(string sourcePath, string destPath)
         {
             try
             {
                 //如果目标路径没有以\结尾则加之 
                if (destPath[destPath.Length - 1] != Path.DirectorySeparatorChar)
                 {
                     destPath += Path.DirectorySeparatorChar;
                 }
                 if (!Directory.Exists(destPath))
                 {
                     Directory.CreateDirectory(destPath);
                 }
                 string[] fileList = Directory.GetFileSystemEntries(sourcePath);
                 foreach (string file in fileList)
                 {
                     //如果是一个目录则
                     if (Directory.Exists(file))
                     {
                         CopyDirectory(file, destPath + Path.GetFileName(file));
                     }
                     else
                     {
                         File.Copy(file, destPath + Path.GetFileName(file),true);
                     }
                 }
             }
             catch(IOException ioe)
             {
                 MessageBox.Show(ioe.Message, "复制文件时出错", MessageBoxButtons.OK, MessageBoxIcon.Warning);
             }
         }
     }
 }

Answer 2

我在我的谷歌浏览器上按了ctrl+F,然后输入单词Drag,一个没有，我想你的不能实现